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Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-8493-1)

high Nessus Plugin ID 325006

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8493-1 advisory.

 Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

 - RISC-V architecture;

 - Cryptographic API;

 - InfiniBand drivers;

 - IOMMU subsystem;

 - Network drivers;

 - STMicroelectronics network drivers;

 - NVME drivers;

 - x86 platform drivers;

 - SCSI subsystem;

 - SPI subsystem;

 - TCM subsystem;

 - USB over IP driver;

 - File systems infrastructure;

 - HFS+ file system;

 - Network file system (NFS) server daemon;

 - SMB network file system;

 - IPv6 networking;

 - Tracing infrastructure;

 - Timer subsystem;

 - B.A.T.M.A.N. meshing protocol;

 - Bluetooth subsystem;

 - Ethernet bridge;

 - Ceph Core library;

 - IPv4 networking;

 - MAC80211 subsystem;

 - Multipath TCP;

 - Netfilter;

 - RxRPC session sockets;

 - SMC sockets;

 - Sun RPC protocol;

 - X.25 network layer;

 - AMD SoC Alsa drivers;

 - KVM subsystem; (CVE-2022-48816, CVE-2023-53673, CVE-2025-37778, CVE-2025-37822, CVE-2025-37924, CVE-2025-38201, CVE-2025-40082, CVE-2025-68214, CVE-2025-68263, CVE-2025-71089, CVE-2025-71220, CVE-2025-71222, CVE-2025-71224, CVE-2026-23176, CVE-2026-23180, CVE-2026-23182, CVE-2026-23190, CVE-2026-23193, CVE-2026-23198, CVE-2026-23202, CVE-2026-23206, CVE-2026-23216, CVE-2026-23256, CVE-2026-23257, CVE-2026-23258, CVE-2026-23262, CVE-2026-23272, CVE-2026-23278, CVE-2026-23428, CVE-2026-23450, CVE-2026-23455, CVE-2026-31402, CVE-2026-31418, CVE-2026-31478, CVE-2026-31607, CVE-2026-31637, CVE-2026-31649, CVE-2026-31657, CVE-2026-31659, CVE-2026-31668, CVE-2026-31669, CVE-2026-31682, CVE-2026-31685, CVE-2026-43011, CVE-2026-43037, CVE-2026-43038, CVE-2026-43071, CVE-2026-43114, CVE-2026-43117, CVE-2026-43186, CVE-2026-43304, CVE-2026-43341, CVE-2026-43383, CVE-2026-43406, CVE-2026-43407, CVE-2026-43414, CVE-2026-43493, CVE-2026-43501, CVE-2026-45988, CVE-2026-46043, CVE-2026-46119, CVE-2026-46135, CVE-2026-46195, CVE-2026-46243)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel package.

See Also

https://ubuntu.com/security/notices/USN-8493-1

Plugin Details

Severity: High

ID: 325006

File Name: ubuntu_USN-8493-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/3/2026

Updated: 7/3/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.9

Percentile: 99.36

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-23428

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1116-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1110-realtime, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-185-fips, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1063-nvidia-tegra, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1094-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1106-nvidia, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1106-intel-iotg, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1103-intel-iot-realtime, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-183-lowlatency-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1103-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1111-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1108-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1106-nvidia-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-183-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-185-generic-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1116-azure-fde, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-185-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1052-nvidia-tegra-igx, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1052-nvidia-tegra-igx-rt, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-185-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1105-ibm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1107-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1063-nvidia-tegra-rt, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1111-aws-fips, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1111-aws-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1111-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1111-gcp-fips

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/1/2026

Vulnerability Publication Date: 7/16/2024

Reference Information

CVE: CVE-2022-48816, CVE-2023-53673, CVE-2025-37778, CVE-2025-37822, CVE-2025-37924, CVE-2025-38201, CVE-2025-40082, CVE-2025-68214, CVE-2025-68263, CVE-2025-71089, CVE-2025-71220, CVE-2025-71222, CVE-2025-71224, CVE-2026-23176, CVE-2026-23180, CVE-2026-23182, CVE-2026-23190, CVE-2026-23193, CVE-2026-23198, CVE-2026-23202, CVE-2026-23206, CVE-2026-23216, CVE-2026-23256, CVE-2026-23257, CVE-2026-23258, CVE-2026-23262, CVE-2026-23272, CVE-2026-23278, CVE-2026-23428, CVE-2026-23450, CVE-2026-23455, CVE-2026-31402, CVE-2026-31418, CVE-2026-31478, CVE-2026-31607, CVE-2026-31637, CVE-2026-31649, CVE-2026-31657, CVE-2026-31659, CVE-2026-31668, CVE-2026-31669, CVE-2026-31682, CVE-2026-31685, CVE-2026-43011, CVE-2026-43037, CVE-2026-43038, CVE-2026-43071, CVE-2026-43114, CVE-2026-43117, CVE-2026-43186, CVE-2026-43304, CVE-2026-43341, CVE-2026-43383, CVE-2026-43406, CVE-2026-43407, CVE-2026-43414, CVE-2026-43493, CVE-2026-43501, CVE-2026-45988, CVE-2026-46043, CVE-2026-46119, CVE-2026-46135, CVE-2026-46195, CVE-2026-46243

USN: 8493-1